Identify the statement that is true about a reservoir. choose one:

(a) a reservoir of sedimentary rock at the bottom of the ocean is called eclogite.
(b) it must have a biological component in order to transfer materials to another reservoir.
(c) a reservoir of metamorphic rock needs the addition of heat and pressure in order to change into a reservoir of sedimentary rock.
(d) it is a component in the earth system that holds material for a period of time.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.